Synthesis, Structures and Properties of Two Metal-Organic Coordination Polymers Derived from Manganese(ΙΙ), Thiabendazole and Polydentate Carboxylic Acids

Liang, Peng; Xia, Wenxiu; Tian, Wei-Man; Yin, Xian‐Hong

doi:10.3390/molecules181214826

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…The Mn-O1, Mn-O3, Mn-N1 bond lengths are 2.1278Ĳ18), 2.3203 (19) and 2.393(2) Å, respectively and within the range reported for Mn-O and Mn-N in coordination polymers. 23 The O1 1 -Mn-O1, O3 1 -Mn-O3, and N1 1 -Mn-N1 bond angles are 99.63Ĳ11)°, 110.22Ĳ12)°and 120.94Ĳ11)°respectively.…”

Section: Crystal Structure Ofmentioning

confidence: 95%

A hydrogen bonded Co(ii) coordination complex and a triply interpenetrating 3-D manganese(ii) coordination polymer from diaza crown ether with dibenzoate sidearms

et al. 2016

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The diaza crown ether dicarboxylate ligand, 4,4′-((1,7-dioxa-4,10-diazacyclododecane-4,10diyl)bisĲmethylene)dibenzoate), L, forms a monomeric coordination complex of CoĲII) ions, CoLĲH 2 O) 2 •2H 2 O, 1, and a coordination polymer (MnL•H 2 O) n , 2, with Mn(II) ions under hydrothermal conditions. The monomeric coordination complex (structure 1) is polar with mirror symmetry and crystallizes in the noncentrosymmetric space group Cm. The mirror plane bisects the complex at the six-coordinate Co(II) ion, the two oxygen atoms of the crown moiety and the two oxygen atoms from coordinated water molecules. The coordinated water molecules take part in strong, linear hydrogen bonds with carboxylate oxygens provided by neighboring Co(II)-crown complexes resulting in a three-dimensional (1 : 1) n polar network in which the topology of the underlying 8-coordinated net is sqc3. The structure of 2 crystallizes in the orthorhombic Fdd2 space group as an infinite, polar triply interpenetrating three-dimensional network. The eight-coordinate Mn(II) ion coordinates two oxygen and two nitrogen atoms of the crown moiety, as well as single carboxylate O atom from each of two neighboring ligands. In both structures, the ligand assumes a flexed-wing bird shape, with the two benzoate sidearms of the crown moiety locked in a syn orientation.The metal ion elevated above the plane of the diaza-crown oxygen and nitrogen atoms. The diaza-crown moiety with its two benzoate sidearms has the peculiar property of forming an oriented crystal structure where the metal-crown vectors are oriented parallel to each other in the crystal. However, the structures are achiral, but the rigid crystal lattice prevents re-orientation of the structure through inversion. The coordination polymer (MnL•H 2 O) n , 2, is a 3-center uninodal net with ths (ThSi 2 ) topology. Computational results using the density functional theory (DFT) calculations explain why the flexed-wing bird shape is the preferred and most stable ligand conformation for metal ion binding. Both structures demonstrate magnetic properties that are characteristics of the respective non-interacting isolated paramagnetic transition metal ions that are present.

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Section: Crystal Structure Ofmentioning

confidence: 95%

A hydrogen bonded Co(ii) coordination complex and a triply interpenetrating 3-D manganese(ii) coordination polymer from diaza crown ether with dibenzoate sidearms

et al. 2016

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“…5 shows the temperature dependence of χ M ·T (where χ M is the molar susceptibility per Co (II) ion) for both compounds 1 and 2. A slow decrease of χ M ·T is observed down 50 and 5K respectively, which is relatively common in compounds with a ground state 4 T 1g (octahedral d 7 ); these systems undergo spin-orbit coupling (see scheme 2). It is known that those molecules, in which there is an orbital contribution in the ground term (T), exhibit moments larger than those expected for an only spin contribution and that their magnetic moments vary with temperature (while the ground terms A and E give rise to moments independent of temperature and without orbital contribution).…”

Section: X-ray Powder Diffraction Analysesmentioning

confidence: 99%

“…The synthesis and design of Metal Organic Frameworks (MOF) based on multidentate ligands such as polycarboxylate and N-heterocyclic ligands, have brought significant interest owing to their fascinating architectures and useful properties such as magnetism, 1, 2 porosity, [3][4][5] luminescence, [6][7][8] etc. It is well-known that aromatic polycarboxylates, especially the N-heterocyclic carboxylates, are excellent building blocks due to their versatile coordination modes and potential hydrogen bonding capabilities, giving additional opportunities to obtain diverse metal-organic assemblies, that includes multidimensional coordination polymers as well as discrete supramolecular structures.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Analysis of Two [Cobalt-Imidazole-Carboxylate] Complexes: Orbital Contribution

Arrué¹,

Toledo²,

Peña³

et al. 2018

J. Chil. Chem. Soc.

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Two coordination complexes, Co(HIMC) 2 (H 2 O) 2 (1) and Co(H 2 IMDC) 2 (H 2 O) 2 (2), were synthesized by mixing the complex precursor Cobalt(II) hexafluoroacetylacetonate (Co(hfacac) 2 ) with 1H-imidazole-4-carboxylic acid (H 2 IMC) and 1H-imidazole-4,5-imidazoledicarboxylic acid (H 3 IMDC) ligands.These compounds have been isolated as neutral, air and thermal stable solid and have been characterized by FT-IR and powder X-Ray diffraction analysis. The thermal stability and magnetic properties were studied in the solid state.Compounds (1) and (2) are mononuclear complexes, where the cobalt ions adopt an distorted octahedral geometry. At low temperature they exhibit a weak antiferromagnetic interaction. The contribution of the angular momentum to the magnetic moment as well as intermolecular interactions were taken into consideration for the quantitative modeling of their magnetic properties

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Non-linear optical properties of β-D-fructopyranose calcium chloride MOFs: an experimental and theoretical approach

et al. 2015

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The second harmonic generation (SHG) properties of two MOFs, obtained from fructose and calcium chloride, were studied using a Non-Linear Optics Multimodal microscope. The first-order hyperpolarizability and the second-order susceptibility were calculated at the DFT level of theory. Moreover, a semi-classical approach to non-linearities in the optical behaviour was used in order to determine the features responsible for the SHG. The MOFs were synthesized both in ethanol and by solid–solid interaction, with a simple, rapid and low-cost methodology with no environmental impact, and were characterized with IR and RAMAN spectroscopy and both the single-crystal and powder X-ray diffraction. Both the metal–carbohydrate-based MOFs show an interesting SHG intensity: in particular, compound 1 shows an average SH intensity more than twice that of sucrose, in agreement with the theoretical results. A favourable combination of optical properties, transparency, thermal and chemical stability makes compound 1 a potential candidate for applications in electro-optics devices

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Synthesis, Structures and Properties of Two Metal-Organic Coordination Polymers Derived from Manganese(ΙΙ), Thiabendazole and Polydentate Carboxylic Acids

Cited by 4 publications

References 16 publications

A hydrogen bonded Co(ii) coordination complex and a triply interpenetrating 3-D manganese(ii) coordination polymer from diaza crown ether with dibenzoate sidearms

A hydrogen bonded Co(ii) coordination complex and a triply interpenetrating 3-D manganese(ii) coordination polymer from diaza crown ether with dibenzoate sidearms

Magnetic Analysis of Two [Cobalt-Imidazole-Carboxylate] Complexes: Orbital Contribution

Non-linear optical properties of β-D-fructopyranose calcium chloride MOFs: an experimental and theoretical approach

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